it droped to 28 for 2 nights.. now its 40 and sunny and no they are out doors..it looks okay, don't see any damage....how cold did it drop?...could you bring them inside during the cold nights?
that is rather cold for outdoor growing, your results may be limited as below freezing will impact their growth...and even 40F is not really warm enough....it would help to give them shelterit droped to 28 for 2 nights.. now its 40 and sunny and no they are out doors..